LeetGrind vs Interviewium
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LeetGrind
Master essential data structures and algorithms with flashcards, quizzes, and spaced review. Track your progress and maintain streaks with smart reminders. All your data stays on your device.
- Flashcards with solutions
- Built-in quizzes with instant feedback
- Spaced review system
- Streak tracking and progress dashboard
- Smart customizable reminders
- Problems organized by category
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LeetGrind is the focused way to master the LeetCode and NeetCode 150, the essential set of data structures and algorithm problems every software engineer should know. FLASHCARDS & SOLUTIONS Every problem is a flashcard. Tap to flip between the problem statement and a detailed breakdown: approach, algorithm steps, time/space complexity, and full code solutions in Python and Java. QUIZ YOURSELF Each card includes a built-in quiz. Answer, get instant feedback showing the correct answer, and track your accuracy over time. Mark problems as Done or flag them for Review Later. SPACED REVIEW Build real retention. The app tracks which problems you've solved, which ones need review, and how many attempts each took. Come back to your flagged problems and keep drilling until they stick. STREAK TRACKING Stay consistent. The dashboard shows your current streak, best streak, daily activity heatmap, and progress ring, all at a glance. Set a daily goal and watch yourself improve. SMART REMINDERS Set notifications that remind you hourly, every 2–4 hours, or at custom times you pick. Choose which days of the week, and configure your own start/end hours. Never break your streak. ALL 150 PROBLEMS ORGANIZED Problems are grouped by category: Arrays & Hashing, Two Pointers, Sliding Window, Stack, Binary Search, Linked List, Trees, Tries, Heap / Priority Queue, Backtracking, Graphs, Dynamic Programming, Greedy, Intervals, Math & Geometry, and Bit Manipulation. PRIVACY FIRST All your data stays on your device. No accounts, no tracking, no analytics. Just you and the grind. ONE-TIME PURCHASE Unlock everything for $1.99. No subscriptions, no recurring charges, no ads. All future updates included. Problem data derived from the NeetCode 150 roadmap (MIT License, Copyright © 2022 neetcode-gh).
Interviewium
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You can solve the problem. Then someone watches you code, asks you to talk through it, and you blank. That freeze is what interviews test. Not whether you can find the answer alone, but whether you can reason out loud under pressure. Interviewium is where you practice that part. WHAT IT IS A voice-first way to prep coding interviews. You speak your reasoning. Each thing you say becomes a card in a flow. You start with the brute force idea and talk your way toward the optimal one, one step at a time. WHO IT IS FOR Working engineers who want to switch jobs and aim high, but have no hours to grind problems all day. If you write code fine and freeze the moment you have to explain it, this is built for you. WHAT IT FIXES - No time to prep. Do a rep on your commute or between meetings. No laptop, no desk. - Freeze when watched. Rehearse the talking, not the typing, until it feels normal. - Tired of memorizing patterns. Reason through problems out loud and see why a solution works. HOW IT WORKS - Pick a problem and start talking. - Each voice input turns into a card you can see and build on. - Move from brute force to optimal as your flow grows. - Get feedback on your reasoning, not a pass or fail grade. PRICING An annual plan, or go month to month. No weekly plan. Cancel anytime. We charge because every practice session runs on a paid AI model, so there is no permanent free tier and no hidden fees. TERMS Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.interviewium.xyz/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: LeetGrind at none against Interviewium's 2. On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Interviewium sells 2 in-app purchases, starting at $14.99 per month. LeetGrind asks for nothing beyond the download.
| Parameter | LeetGrind | Interviewium |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | — | Weekly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 26.2 | 26.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Sri Ujjwal Reddy Beereddy | Teimur Gasanov |
In-app purchases
LeetGrind
No in-app purchases
Interviewium
- Monthly Subscription$14.991 Month
- Yearly Subscription7 Days trial$99.991 Year









